exo: Implement minimal support for version 6 of XDG shell.

third_party/wayland-protocols/include/protocol/xdg-shell-unstable-v6-server-protocol.h

Index: third_party/wayland-protocols/include/protocol/xdg-shell-unstable-v6-server-protocol.h
diff --git a/third_party/wayland-protocols/include/protocol/xdg-shell-unstable-v6-server-protocol.h b/third_party/wayland-protocols/include/protocol/xdg-shell-unstable-v6-server-protocol.h
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+/* Generated by wayland-scanner 1.11.0 */
+
+#ifndef XDG_SHELL_UNSTABLE_V6_SERVER_PROTOCOL_H
+#define XDG_SHELL_UNSTABLE_V6_SERVER_PROTOCOL_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include "wayland-server.h"
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+struct wl_client;
+struct wl_resource;
+
+/**
+ * @page page_xdg_shell_unstable_v6 The xdg_shell_unstable_v6 protocol
+ * @section page_ifaces_xdg_shell_unstable_v6 Interfaces
+ * - @subpage page_iface_zxdg_shell_v6 - create desktop-style surfaces
+ * - @subpage page_iface_zxdg_positioner_v6 - child surface positioner
+ * - @subpage page_iface_zxdg_surface_v6 - desktop user interface surface base interface
+ * - @subpage page_iface_zxdg_toplevel_v6 - toplevel surface
+ * - @subpage page_iface_zxdg_popup_v6 - short-lived, popup surfaces for menus
+ * @section page_copyright_xdg_shell_unstable_v6 Copyright
+ * <pre>
+ *
+ * Copyright © 2008-2013 Kristian Høgsberg
+ * Copyright © 2013      Rafael Antognolli
+ * Copyright © 2013      Jasper St. Pierre
+ * Copyright © 2010-2013 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ * </pre>
+ */
+struct wl_output;
+struct wl_seat;
+struct wl_surface;
+struct zxdg_popup_v6;
+struct zxdg_positioner_v6;
+struct zxdg_shell_v6;
+struct zxdg_surface_v6;
+struct zxdg_toplevel_v6;
+
+/**
+ * @page page_iface_zxdg_shell_v6 zxdg_shell_v6
+ * @section page_iface_zxdg_shell_v6_desc Description
+ *
+ * xdg_shell allows clients to turn a wl_surface into a "real window"
+ * which can be dragged, resized, stacked, and moved around by the
+ * user. Everything about this interface is suited towards traditional
+ * desktop environments.
+ * @section page_iface_zxdg_shell_v6_api API
+ * See @ref iface_zxdg_shell_v6.
+ */
+/**
+ * @defgroup iface_zxdg_shell_v6 The zxdg_shell_v6 interface
+ *
+ * xdg_shell allows clients to turn a wl_surface into a "real window"
+ * which can be dragged, resized, stacked, and moved around by the
+ * user. Everything about this interface is suited towards traditional
+ * desktop environments.
+ */
+extern const struct wl_interface zxdg_shell_v6_interface;
+/**
+ * @page page_iface_zxdg_positioner_v6 zxdg_positioner_v6
+ * @section page_iface_zxdg_positioner_v6_desc Description
+ *
+ * The xdg_positioner provides a collection of rules for the placement of a
+ * child surface relative to a parent surface. Rules can be defined to ensure
+ * the child surface remains within the visible area's borders, and to
+ * specify how the child surface changes its position, such as sliding along
+ * an axis, or flipping around a rectangle.
+ *
+ * See the various requests for details about possible rules.
+ *
+ * At the time of the request, the compositor makes a copy of the rules
+ * specified by the xdg_positioner. Thus, after the request is complete the
+ * xdg_positioner object can be destroyed or reused; further changes to the
+ * object will have no effect on previous usages.
+ *
+ * For an xdg_positioner object to be considered complete, it must have a
+ * non-zero size set by set_size, and a non-zero anchor rectangle set by
+ * set_anchor_rect. Passing an incomplete xdg_positioner object when
+ * positioning a surface raises an error.
+ * @section page_iface_zxdg_positioner_v6_api API
+ * See @ref iface_zxdg_positioner_v6.
+ */
+/**
+ * @defgroup iface_zxdg_positioner_v6 The zxdg_positioner_v6 interface
+ *
+ * The xdg_positioner provides a collection of rules for the placement of a
+ * child surface relative to a parent surface. Rules can be defined to ensure
+ * the child surface remains within the visible area's borders, and to
+ * specify how the child surface changes its position, such as sliding along
+ * an axis, or flipping around a rectangle.
+ *
+ * See the various requests for details about possible rules.
+ *
+ * At the time of the request, the compositor makes a copy of the rules
+ * specified by the xdg_positioner. Thus, after the request is complete the
+ * xdg_positioner object can be destroyed or reused; further changes to the
+ * object will have no effect on previous usages.
+ *
+ * For an xdg_positioner object to be considered complete, it must have a
+ * non-zero size set by set_size, and a non-zero anchor rectangle set by
+ * set_anchor_rect. Passing an incomplete xdg_positioner object when
+ * positioning a surface raises an error.
+ */
+extern const struct wl_interface zxdg_positioner_v6_interface;
+/**
+ * @page page_iface_zxdg_surface_v6 zxdg_surface_v6
+ * @section page_iface_zxdg_surface_v6_desc Description
+ *
+ * An interface that may be implemented by a wl_surface, for
+ * implementations that provide a desktop-style user interface.
+ *
+ * It provides a base set of functionality required to construct user
+ * interface elements requiring management by the compositor, such as
+ * toplevel windows, menus, etc. The types of functionality are split into
+ * xdg_surface roles.
+ *
+ * Creating an xdg_surface does not set the role for a wl_surface. In order
+ * to map an xdg_surface, the client must create a role-specific object
+ * using, e.g., get_toplevel, get_popup. The wl_surface for any given
+ * xdg_surface can have at most one role, and may not be assigned any role
+ * not based on xdg_surface.
+ *
+ * A role must be assigned before any other requests are made to the
+ * xdg_surface object.
+ *
+ * The client must call wl_surface.commit on the corresponding wl_surface
+ * for the xdg_surface state to take effect.
+ *
+ * Creating an xdg_surface from a wl_surface which has a buffer attached or
+ * committed is a client error, and any attempts by a client to attach or
+ * manipulate a buffer prior to the first xdg_surface.configure call must
+ * also be treated as errors.
+ *
+ * For a surface to be mapped by the compositor, the following conditions
+ * must be met: (1) the client has assigned a xdg_surface based role to the
+ * surface, (2) the client has set and committed the xdg_surface state and
+ * the role dependent state to the surface and (3) the client has committed a
+ * buffer to the surface.
+ * @section page_iface_zxdg_surface_v6_api API
+ * See @ref iface_zxdg_surface_v6.
+ */
+/**
+ * @defgroup iface_zxdg_surface_v6 The zxdg_surface_v6 interface
+ *
+ * An interface that may be implemented by a wl_surface, for
+ * implementations that provide a desktop-style user interface.
+ *
+ * It provides a base set of functionality required to construct user
+ * interface elements requiring management by the compositor, such as
+ * toplevel windows, menus, etc. The types of functionality are split into
+ * xdg_surface roles.
+ *
+ * Creating an xdg_surface does not set the role for a wl_surface. In order
+ * to map an xdg_surface, the client must create a role-specific object
+ * using, e.g., get_toplevel, get_popup. The wl_surface for any given
+ * xdg_surface can have at most one role, and may not be assigned any role
+ * not based on xdg_surface.
+ *
+ * A role must be assigned before any other requests are made to the
+ * xdg_surface object.
+ *
+ * The client must call wl_surface.commit on the corresponding wl_surface
+ * for the xdg_surface state to take effect.
+ *
+ * Creating an xdg_surface from a wl_surface which has a buffer attached or
+ * committed is a client error, and any attempts by a client to attach or
+ * manipulate a buffer prior to the first xdg_surface.configure call must
+ * also be treated as errors.
+ *
+ * For a surface to be mapped by the compositor, the following conditions
+ * must be met: (1) the client has assigned a xdg_surface based role to the
+ * surface, (2) the client has set and committed the xdg_surface state and
+ * the role dependent state to the surface and (3) the client has committed a
+ * buffer to the surface.
+ */
+extern const struct wl_interface zxdg_surface_v6_interface;
+/**
+ * @page page_iface_zxdg_toplevel_v6 zxdg_toplevel_v6
+ * @section page_iface_zxdg_toplevel_v6_desc Description
+ *
+ * This interface defines an xdg_surface role which allows a surface to,
+ * among other things, set window-like properties such as maximize,
+ * fullscreen, and minimize, set application-specific metadata like title and
+ * id, and well as trigger user interactive operations such as interactive
+ * resize and move.
+ * @section page_iface_zxdg_toplevel_v6_api API
+ * See @ref iface_zxdg_toplevel_v6.
+ */
+/**
+ * @defgroup iface_zxdg_toplevel_v6 The zxdg_toplevel_v6 interface
+ *
+ * This interface defines an xdg_surface role which allows a surface to,
+ * among other things, set window-like properties such as maximize,
+ * fullscreen, and minimize, set application-specific metadata like title and
+ * id, and well as trigger user interactive operations such as interactive
+ * resize and move.
+ */
+extern const struct wl_interface zxdg_toplevel_v6_interface;
+/**
+ * @page page_iface_zxdg_popup_v6 zxdg_popup_v6
+ * @section page_iface_zxdg_popup_v6_desc Description
+ *
+ * A popup surface is a short-lived, temporary surface. It can be used to
+ * implement for example menus, popovers, tooltips and other similar user
+ * interface concepts.
+ *
+ * A popup can be made to take an explicit grab. See xdg_popup.grab for
+ * details.
+ *
+ * When the popup is dismissed, a popup_done event will be sent out, and at
+ * the same time the surface will be unmapped. See the xdg_popup.popup_done
+ * event for details.
+ *
+ * Explicitly destroying the xdg_popup object will also dismiss the popup and
+ * unmap the surface. Clients that want to dismiss the popup when another
+ * surface of their own is clicked should dismiss the popup using the destroy
+ * request.
+ *
+ * The parent surface must have either the xdg_toplevel or xdg_popup surface
+ * role.
+ *
+ * A newly created xdg_popup will be stacked on top of all previously created
+ * xdg_popup surfaces associated with the same xdg_toplevel.
+ *
+ * The parent of an xdg_popup must be mapped (see the xdg_surface
+ * description) before the xdg_popup itself.
+ *
+ * The x and y arguments passed when creating the popup object specify
+ * where the top left of the popup should be placed, relative to the
+ * local surface coordinates of the parent surface. See
+ * xdg_surface.get_popup.
+ *
+ * The client must call wl_surface.commit on the corresponding wl_surface
+ * for the xdg_popup state to take effect.
+ * @section page_iface_zxdg_popup_v6_api API
+ * See @ref iface_zxdg_popup_v6.
+ */
+/**
+ * @defgroup iface_zxdg_popup_v6 The zxdg_popup_v6 interface
+ *
+ * A popup surface is a short-lived, temporary surface. It can be used to
+ * implement for example menus, popovers, tooltips and other similar user
+ * interface concepts.
+ *
+ * A popup can be made to take an explicit grab. See xdg_popup.grab for
+ * details.
+ *
+ * When the popup is dismissed, a popup_done event will be sent out, and at
+ * the same time the surface will be unmapped. See the xdg_popup.popup_done
+ * event for details.
+ *
+ * Explicitly destroying the xdg_popup object will also dismiss the popup and
+ * unmap the surface. Clients that want to dismiss the popup when another
+ * surface of their own is clicked should dismiss the popup using the destroy
+ * request.
+ *
+ * The parent surface must have either the xdg_toplevel or xdg_popup surface
+ * role.
+ *
+ * A newly created xdg_popup will be stacked on top of all previously created
+ * xdg_popup surfaces associated with the same xdg_toplevel.
+ *
+ * The parent of an xdg_popup must be mapped (see the xdg_surface
+ * description) before the xdg_popup itself.
+ *
+ * The x and y arguments passed when creating the popup object specify
+ * where the top left of the popup should be placed, relative to the
+ * local surface coordinates of the parent surface. See
+ * xdg_surface.get_popup.
+ *
+ * The client must call wl_surface.commit on the corresponding wl_surface
+ * for the xdg_popup state to take effect.
+ */
+extern const struct wl_interface zxdg_popup_v6_interface;
+
+#ifndef ZXDG_SHELL_V6_ERROR_ENUM
+#define ZXDG_SHELL_V6_ERROR_ENUM
+enum zxdg_shell_v6_error {
+	/**
+	 * given wl_surface has another role
+	 */
+	ZXDG_SHELL_V6_ERROR_ROLE = 0,
+	/**
+	 * xdg_shell was destroyed before children
+	 */
+	ZXDG_SHELL_V6_ERROR_DEFUNCT_SURFACES = 1,
+	/**
+	 * the client tried to map or destroy a non-topmost popup
+	 */
+	ZXDG_SHELL_V6_ERROR_NOT_THE_TOPMOST_POPUP = 2,
+	/**
+	 * the client specified an invalid popup parent surface
+	 */
+	ZXDG_SHELL_V6_ERROR_INVALID_POPUP_PARENT = 3,
+	/**
+	 * the client provided an invalid surface state
+	 */
+	ZXDG_SHELL_V6_ERROR_INVALID_SURFACE_STATE = 4,
+	/**
+	 * the client provided an invalid positioner
+	 */
+	ZXDG_SHELL_V6_ERROR_INVALID_POSITIONER = 5,
+};
+#endif /* ZXDG_SHELL_V6_ERROR_ENUM */
+
+/**
+ * @ingroup iface_zxdg_shell_v6
+ * @struct zxdg_shell_v6_interface
+ */
+struct zxdg_shell_v6_interface {
+	/**
+	 * destroy xdg_shell
+	 *
+	 * Destroy this xdg_shell object.
+	 *
+	 * Destroying a bound xdg_shell object while there are surfaces
+	 * still alive created by this xdg_shell object instance is illegal
+	 * and will result in a protocol error.
+	 */
+	void (*destroy)(struct wl_client *client,
+			struct wl_resource *resource);
+	/**
+	 * create a positioner object
+	 *
+	 * Create a positioner object. A positioner object is used to
+	 * position surfaces relative to some parent surface. See the
+	 * interface description and xdg_surface.get_popup for details.
+	 */
+	void (*create_positioner)(struct wl_client *client,
+				  struct wl_resource *resource,
+				  uint32_t id);
+	/**
+	 * create a shell surface from a surface
+	 *
+	 * This creates an xdg_surface for the given surface. While
+	 * xdg_surface itself is not a role, the corresponding surface may
+	 * only be assigned a role extending xdg_surface, such as
+	 * xdg_toplevel or xdg_popup.
+	 *
+	 * This creates an xdg_surface for the given surface. An
+	 * xdg_surface is used as basis to define a role to a given
+	 * surface, such as xdg_toplevel or xdg_popup. It also manages
+	 * functionality shared between xdg_surface based surface roles.
+	 *
+	 * See the documentation of xdg_surface for more details about what
+	 * an xdg_surface is and how it is used.
+	 */
+	void (*get_xdg_surface)(struct wl_client *client,
+				struct wl_resource *resource,
+				uint32_t id,
+				struct wl_resource *surface);
+	/**
+	 * respond to a ping event
+	 *
+	 * A client must respond to a ping event with a pong request or
+	 * the client may be deemed unresponsive. See xdg_shell.ping.
+	 * @param serial serial of the ping event
+	 */
+	void (*pong)(struct wl_client *client,
+		     struct wl_resource *resource,
+		     uint32_t serial);
+};
+
+#define ZXDG_SHELL_V6_PING	0
+
+/**
+ * @ingroup iface_zxdg_shell_v6
+ */
+#define ZXDG_SHELL_V6_PING_SINCE_VERSION	1
+
+/**
+ * @ingroup iface_zxdg_shell_v6
+ * Sends an ping event to the client owning the resource.
+ * @param resource_ The client's resource
+ * @param serial pass this to the pong request
+ */
+static inline void
+zxdg_shell_v6_send_ping(struct wl_resource *resource_, uint32_t serial)
+{
+	wl_resource_post_event(resource_, ZXDG_SHELL_V6_PING, serial);
+}
+
+#ifndef ZXDG_POSITIONER_V6_ERROR_ENUM
+#define ZXDG_POSITIONER_V6_ERROR_ENUM
+enum zxdg_positioner_v6_error {
+	/**
+	 * invalid input provided
+	 */
+	ZXDG_POSITIONER_V6_ERROR_INVALID_INPUT = 0,
+};
+#endif /* ZXDG_POSITIONER_V6_ERROR_ENUM */
+
+#ifndef ZXDG_POSITIONER_V6_ANCHOR_ENUM
+#define ZXDG_POSITIONER_V6_ANCHOR_ENUM
+enum zxdg_positioner_v6_anchor {
+	/**
+	 * the center of the anchor rectangle
+	 */
+	ZXDG_POSITIONER_V6_ANCHOR_NONE = 0,
+	/**
+	 * the top edge of the anchor rectangle
+	 */
+	ZXDG_POSITIONER_V6_ANCHOR_TOP = 1,
+	/**
+	 * the bottom edge of the anchor rectangle
+	 */
+	ZXDG_POSITIONER_V6_ANCHOR_BOTTOM = 2,
+	/**
+	 * the left edge of the anchor rectangle
+	 */
+	ZXDG_POSITIONER_V6_ANCHOR_LEFT = 4,
+	/**
+	 * the right edge of the anchor rectangle
+	 */
+	ZXDG_POSITIONER_V6_ANCHOR_RIGHT = 8,
+};
+#endif /* ZXDG_POSITIONER_V6_ANCHOR_ENUM */
+
+#ifndef ZXDG_POSITIONER_V6_GRAVITY_ENUM
+#define ZXDG_POSITIONER_V6_GRAVITY_ENUM
+enum zxdg_positioner_v6_gravity {
+	/**
+	 * center over the anchor edge
+	 */
+	ZXDG_POSITIONER_V6_GRAVITY_NONE = 0,
+	/**
+	 * position above the anchor edge
+	 */
+	ZXDG_POSITIONER_V6_GRAVITY_TOP = 1,
+	/**
+	 * position below the anchor edge
+	 */
+	ZXDG_POSITIONER_V6_GRAVITY_BOTTOM = 2,
+	/**
+	 * position to the left of the anchor edge
+	 */
+	ZXDG_POSITIONER_V6_GRAVITY_LEFT = 4,
+	/**
+	 * position to the right of the anchor edge
+	 */
+	ZXDG_POSITIONER_V6_GRAVITY_RIGHT = 8,
+};
+#endif /* ZXDG_POSITIONER_V6_GRAVITY_ENUM */
+
+#ifndef ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_ENUM
+#define ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_ENUM
+/**
+ * @ingroup iface_zxdg_positioner_v6
+ * vertically resize the surface
+ *
+ * Resize the surface vertically so that it is completely unconstrained.
+ */
+enum zxdg_positioner_v6_constraint_adjustment {
+	ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_NONE = 0,
+	ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_SLIDE_X = 1,
+	ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_SLIDE_Y = 2,
+	ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_FLIP_X = 4,
+	ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_FLIP_Y = 8,
+	ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_RESIZE_X = 16,
+	ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_RESIZE_Y = 32,
+};
+#endif /* ZXDG_POSITIONER_V6_CONSTRAINT_ADJUSTMENT_ENUM */
+
+/**
+ * @ingroup iface_zxdg_positioner_v6
+ * @struct zxdg_positioner_v6_interface
+ */
+struct zxdg_positioner_v6_interface {
+	/**
+	 * destroy the xdg_positioner object
+	 *
+	 * Notify the compositor that the xdg_positioner will no longer
+	 * be used.
+	 */
+	void (*destroy)(struct wl_client *client,
+			struct wl_resource *resource);
+	/**
+	 * set the size of the to-be positioned rectangle
+	 *
+	 * Set the size of the surface that is to be positioned with the
+	 * positioner object. The size is in surface-local coordinates and
+	 * corresponds to the window geometry. See
+	 * xdg_surface.set_window_geometry.
+	 *
+	 * If a zero or negative size is set the invalid_input error is
+	 * raised.
+	 * @param width width of positioned rectangle
+	 * @param height height of positioned rectangle
+	 */
+	void (*set_size)(struct wl_client *client,
+			 struct wl_resource *resource,
+			 int32_t width,
+			 int32_t height);
+	/**
+	 * set the anchor rectangle within the parent surface
+	 *
+	 * Specify the anchor rectangle within the parent surface that
+	 * the child surface will be placed relative to. The rectangle is
+	 * relative to the window geometry as defined by
+	 * xdg_surface.set_window_geometry of the parent surface. The
+	 * rectangle must be at least 1x1 large.
+	 *
+	 * When the xdg_positioner object is used to position a child
+	 * surface, the anchor rectangle may not extend outside the window
+	 * geometry of the positioned child's parent surface.
+	 *
+	 * If a zero or negative size is set the invalid_input error is
+	 * raised.
+	 * @param x x position of anchor rectangle
+	 * @param y y position of anchor rectangle
+	 * @param width width of anchor rectangle
+	 * @param height height of anchor rectangle
+	 */
+	void (*set_anchor_rect)(struct wl_client *client,
+				struct wl_resource *resource,
+				int32_t x,
+				int32_t y,
+				int32_t width,
+				int32_t height);
+	/**
+	 * set anchor rectangle anchor edges
+	 *
+	 * Defines a set of edges for the anchor rectangle. These are
+	 * used to derive an anchor point that the child surface will be
+	 * positioned relative to. If two orthogonal edges are specified
+	 * (e.g. 'top' and 'left'), then the anchor point will be the
+	 * intersection of the edges (e.g. the top left position of the
+	 * rectangle); otherwise, the derived anchor point will be centered
+	 * on the specified edge, or in the center of the anchor rectangle
+	 * if no edge is specified.
+	 *
+	 * If two parallel anchor edges are specified (e.g. 'left' and
+	 * 'right'), the invalid_input error is raised.
+	 * @param anchor bit mask of anchor edges
+	 */
+	void (*set_anchor)(struct wl_client *client,
+			   struct wl_resource *resource,
+			   uint32_t anchor);
+	/**
+	 * set child surface gravity
+	 *
+	 * Defines in what direction a surface should be positioned,
+	 * relative to the anchor point of the parent surface. If two
+	 * orthogonal gravities are specified (e.g. 'bottom' and 'right'),
+	 * then the child surface will be placed in the specified
+	 * direction; otherwise, the child surface will be centered over
+	 * the anchor point on any axis that had no gravity specified.
+	 *
+	 * If two parallel gravities are specified (e.g. 'left' and
+	 * 'right'), the invalid_input error is raised.
+	 * @param gravity bit mask of gravity directions
+	 */
+	void (*set_gravity)(struct wl_client *client,
+			    struct wl_resource *resource,
+			    uint32_t gravity);
+	/**
+	 * set the adjustment to be done when constrained
+	 *
+	 * Specify how the window should be positioned if the originally
+	 * intended position caused the surface to be constrained, meaning
+	 * at least partially outside positioning boundaries set by the
+	 * compositor. The adjustment is set by constructing a bitmask
+	 * describing the adjustment to be made when the surface is
+	 * constrained on that axis.
+	 *
+	 * If no bit for one axis is set, the compositor will assume that
+	 * the child surface should not change its position on that axis
+	 * when constrained.
+	 *
+	 * If more than one bit for one axis is set, the order of how
+	 * adjustments are applied is specified in the corresponding
+	 * adjustment descriptions.
+	 *
+	 * The default adjustment is none.
+	 * @param constraint_adjustment bit mask of constraint adjustments
+	 */
+	void (*set_constraint_adjustment)(struct wl_client *client,
+					  struct wl_resource *resource,
+					  uint32_t constraint_adjustment);
+	/**
+	 * set surface position offset
+	 *
+	 * Specify the surface position offset relative to the position
+	 * of the anchor on the anchor rectangle and the anchor on the
+	 * surface. For example if the anchor of the anchor rectangle is at
+	 * (x, y), the surface has the gravity bottom|right, and the offset
+	 * is (ox, oy), the calculated surface position will be (x + ox, y
+	 * + oy). The offset position of the surface is the one used for
+	 * constraint testing. See set_constraint_adjustment.
+	 *
+	 * An example use case is placing a popup menu on top of a user
+	 * interface element, while aligning the user interface element of
+	 * the parent surface with some user interface element placed
+	 * somewhere in the popup surface.
+	 * @param x surface position x offset
+	 * @param y surface position y offset
+	 */
+	void (*set_offset)(struct wl_client *client,
+			   struct wl_resource *resource,
+			   int32_t x,
+			   int32_t y);
+};
+
+
+#ifndef ZXDG_SURFACE_V6_ERROR_ENUM
+#define ZXDG_SURFACE_V6_ERROR_ENUM
+enum zxdg_surface_v6_error {
+	ZXDG_SURFACE_V6_ERROR_NOT_CONSTRUCTED = 1,
+	ZXDG_SURFACE_V6_ERROR_ALREADY_CONSTRUCTED = 2,
+	ZXDG_SURFACE_V6_ERROR_UNCONFIGURED_BUFFER = 3,
+};
+#endif /* ZXDG_SURFACE_V6_ERROR_ENUM */
+
+/**
+ * @ingroup iface_zxdg_surface_v6
+ * @struct zxdg_surface_v6_interface
+ */
+struct zxdg_surface_v6_interface {
+	/**
+	 * destroy the xdg_surface
+	 *
+	 * Destroy the xdg_surface object. An xdg_surface must only be
+	 * destroyed after its role object has been destroyed.
+	 */
+	void (*destroy)(struct wl_client *client,
+			struct wl_resource *resource);
+	/**
+	 * assign the xdg_toplevel surface role
+	 *
+	 * This creates an xdg_toplevel object for the given xdg_surface
+	 * and gives the associated wl_surface the xdg_toplevel role.
+	 *
+	 * See the documentation of xdg_toplevel for more details about
+	 * what an xdg_toplevel is and how it is used.
+	 */
+	void (*get_toplevel)(struct wl_client *client,
+			     struct wl_resource *resource,
+			     uint32_t id);
+	/**
+	 * assign the xdg_popup surface role
+	 *
+	 * This creates an xdg_popup object for the given xdg_surface and
+	 * gives the associated wl_surface the xdg_popup role.
+	 *
+	 * See the documentation of xdg_popup for more details about what
+	 * an xdg_popup is and how it is used.
+	 */
+	void (*get_popup)(struct wl_client *client,
+			  struct wl_resource *resource,
+			  uint32_t id,
+			  struct wl_resource *parent,
+			  struct wl_resource *positioner);
+	/**
+	 * set the new window geometry
+	 *
+	 * The window geometry of a surface is its "visible bounds" from
+	 * the user's perspective. Client-side decorations often have
+	 * invisible portions like drop-shadows which should be ignored for
+	 * the purposes of aligning, placing and constraining windows.
+	 *
+	 * The window geometry is double buffered, and will be applied at
+	 * the time wl_surface.commit of the corresponding wl_surface is
+	 * called.
+	 *
+	 * Once the window geometry of the surface is set, it is not
+	 * possible to unset it, and it will remain the same until
+	 * set_window_geometry is called again, even if a new subsurface or
+	 * buffer is attached.
+	 *
+	 * If never set, the value is the full bounds of the surface,
+	 * including any subsurfaces. This updates dynamically on every
+	 * commit. This unset is meant for extremely simple clients.
+	 *
+	 * The arguments are given in the surface-local coordinate space of
+	 * the wl_surface associated with this xdg_surface.
+	 *
+	 * The width and height must be greater than zero. Setting an
+	 * invalid size will raise an error. When applied, the effective
+	 * window geometry will be the set window geometry clamped to the
+	 * bounding rectangle of the combined geometry of the surface of
+	 * the xdg_surface and the associated subsurfaces.
+	 */
+	void (*set_window_geometry)(struct wl_client *client,
+				    struct wl_resource *resource,
+				    int32_t x,
+				    int32_t y,
+				    int32_t width,
+				    int32_t height);
+	/**
+	 * ack a configure event
+	 *
+	 * When a configure event is received, if a client commits the
+	 * surface in response to the configure event, then the client must
+	 * make an ack_configure request sometime before the commit
+	 * request, passing along the serial of the configure event.
+	 *
+	 * For instance, for toplevel surfaces the compositor might use
+	 * this information to move a surface to the top left only when the
+	 * client has drawn itself for the maximized or fullscreen state.
+	 *
+	 * If the client receives multiple configure events before it can
+	 * respond to one, it only has to ack the last configure event.
+	 *
+	 * A client is not required to commit immediately after sending an
+	 * ack_configure request - it may even ack_configure several times
+	 * before its next surface commit.
+	 *
+	 * A client may send multiple ack_configure requests before
+	 * committing, but only the last request sent before a commit
+	 * indicates which configure event the client really is responding
+	 * to.
+	 * @param serial the serial from the configure event
+	 */
+	void (*ack_configure)(struct wl_client *client,
+			      struct wl_resource *resource,
+			      uint32_t serial);
+};
+
+#define ZXDG_SURFACE_V6_CONFIGURE	0
+
+/**
+ * @ingroup iface_zxdg_surface_v6
+ */
+#define ZXDG_SURFACE_V6_CONFIGURE_SINCE_VERSION	1
+
+/**
+ * @ingroup iface_zxdg_surface_v6
+ * Sends an configure event to the client owning the resource.
+ * @param resource_ The client's resource
+ * @param serial serial of the configure event
+ */
+static inline void
+zxdg_surface_v6_send_configure(struct wl_resource *resource_, uint32_t serial)
+{
+	wl_resource_post_event(resource_, ZXDG_SURFACE_V6_CONFIGURE, serial);
+}
+
+#ifndef ZXDG_TOPLEVEL_V6_RESIZE_EDGE_ENUM
+#define ZXDG_TOPLEVEL_V6_RESIZE_EDGE_ENUM
+/**
+ * @ingroup iface_zxdg_toplevel_v6
+ * edge values for resizing
+ *
+ * These values are used to indicate which edge of a surface
+ * is being dragged in a resize operation.
+ */
+enum zxdg_toplevel_v6_resize_edge {
+	ZXDG_TOPLEVEL_V6_RESIZE_EDGE_NONE = 0,
+	ZXDG_TOPLEVEL_V6_RESIZE_EDGE_TOP = 1,
+	ZXDG_TOPLEVEL_V6_RESIZE_EDGE_BOTTOM = 2,
+	ZXDG_TOPLEVEL_V6_RESIZE_EDGE_LEFT = 4,
+	ZXDG_TOPLEVEL_V6_RESIZE_EDGE_TOP_LEFT = 5,
+	ZXDG_TOPLEVEL_V6_RESIZE_EDGE_BOTTOM_LEFT = 6,
+	ZXDG_TOPLEVEL_V6_RESIZE_EDGE_RIGHT = 8,
+	ZXDG_TOPLEVEL_V6_RESIZE_EDGE_TOP_RIGHT = 9,
+	ZXDG_TOPLEVEL_V6_RESIZE_EDGE_BOTTOM_RIGHT = 10,
+};
+#endif /* ZXDG_TOPLEVEL_V6_RESIZE_EDGE_ENUM */
+
+#ifndef ZXDG_TOPLEVEL_V6_STATE_ENUM
+#define ZXDG_TOPLEVEL_V6_STATE_ENUM
+/**
+ * @ingroup iface_zxdg_toplevel_v6
+ * the surface is now activated
+ *
+ * Client window decorations should be painted as if the window is
+ * active. Do not assume this means that the window actually has
+ * keyboard or pointer focus.
+ */
+enum zxdg_toplevel_v6_state {
+	/**
+	 * the surface is maximized
+	 */
+	ZXDG_TOPLEVEL_V6_STATE_MAXIMIZED = 1,
+	/**
+	 * the surface is fullscreen
+	 */
+	ZXDG_TOPLEVEL_V6_STATE_FULLSCREEN = 2,
+	/**
+	 * the surface is being resized
+	 */
+	ZXDG_TOPLEVEL_V6_STATE_RESIZING = 3,
+	/**
+	 * the surface is now activated
+	 */
+	ZXDG_TOPLEVEL_V6_STATE_ACTIVATED = 4,
+};
+#endif /* ZXDG_TOPLEVEL_V6_STATE_ENUM */
+
+/**
+ * @ingroup iface_zxdg_toplevel_v6
+ * @struct zxdg_toplevel_v6_interface
+ */
+struct zxdg_toplevel_v6_interface {
+	/**
+	 * destroy the xdg_toplevel
+	 *
+	 * Unmap and destroy the window. The window will be effectively
+	 * hidden from the user's point of view, and all state like
+	 * maximization, fullscreen, and so on, will be lost.
+	 */
+	void (*destroy)(struct wl_client *client,
+			struct wl_resource *resource);
+	/**
+	 * set the parent of this surface
+	 *
+	 * Set the "parent" of this surface. This window should be
+	 * stacked above a parent. The parent surface must be mapped as
+	 * long as this surface is mapped.
+	 *
+	 * Parent windows should be set on dialogs, toolboxes, or other
+	 * "auxiliary" surfaces, so that the parent is raised when the
+	 * dialog is raised.
+	 */
+	void (*set_parent)(struct wl_client *client,
+			   struct wl_resource *resource,
+			   struct wl_resource *parent);
+	/**
+	 * set surface title
+	 *
+	 * Set a short title for the surface.
+	 *
+	 * This string may be used to identify the surface in a task bar,
+	 * window list, or other user interface elements provided by the
+	 * compositor.
+	 *
+	 * The string must be encoded in UTF-8.
+	 */
+	void (*set_title)(struct wl_client *client,
+			  struct wl_resource *resource,
+			  const char *title);
+	/**
+	 * set application ID
+	 *
+	 * Set an application identifier for the surface.
+	 *
+	 * The app ID identifies the general class of applications to which
+	 * the surface belongs. The compositor can use this to group
+	 * multiple surfaces together, or to determine how to launch a new
+	 * application.
+	 *
+	 * For D-Bus activatable applications, the app ID is used as the
+	 * D-Bus service name.
+	 *
+	 * The compositor shell will try to group application surfaces
+	 * together by their app ID. As a best practice, it is suggested to
+	 * select app ID's that match the basename of the application's
+	 * .desktop file. For example, "org.freedesktop.FooViewer" where
+	 * the .desktop file is "org.freedesktop.FooViewer.desktop".
+	 *
+	 * See the desktop-entry specification [0] for more details on
+	 * application identifiers and how they relate to well-known D-Bus
+	 * names and .desktop files.
+	 *
+	 * [0] http://standards.freedesktop.org/desktop-entry-spec/
+	 */
+	void (*set_app_id)(struct wl_client *client,
+			   struct wl_resource *resource,
+			   const char *app_id);
+	/**
+	 * show the window menu
+	 *
+	 * Clients implementing client-side decorations might want to
+	 * show a context menu when right-clicking on the decorations,
+	 * giving the user a menu that they can use to maximize or minimize
+	 * the window.
+	 *
+	 * This request asks the compositor to pop up such a window menu at
+	 * the given position, relative to the local surface coordinates of
+	 * the parent surface. There are no guarantees as to what menu
+	 * items the window menu contains.
+	 *
+	 * This request must be used in response to some sort of user
+	 * action like a button press, key press, or touch down event.
+	 * @param seat the wl_seat of the user event
+	 * @param serial the serial of the user event
+	 * @param x the x position to pop up the window menu at
+	 * @param y the y position to pop up the window menu at
+	 */
+	void (*show_window_menu)(struct wl_client *client,
+				 struct wl_resource *resource,
+				 struct wl_resource *seat,
+				 uint32_t serial,
+				 int32_t x,
+				 int32_t y);
+	/**
+	 * start an interactive move
+	 *
+	 * Start an interactive, user-driven move of the surface.
+	 *
+	 * This request must be used in response to some sort of user
+	 * action like a button press, key press, or touch down event. The
+	 * passed serial is used to determine the type of interactive move
+	 * (touch, pointer, etc).
+	 *
+	 * The server may ignore move requests depending on the state of
+	 * the surface (e.g. fullscreen or maximized), or if the passed
+	 * serial is no longer valid.
+	 *
+	 * If triggered, the surface will lose the focus of the device
+	 * (wl_pointer, wl_touch, etc) used for the move. It is up to the
+	 * compositor to visually indicate that the move is taking place,
+	 * such as updating a pointer cursor, during the move. There is no
+	 * guarantee that the device focus will return when the move is
+	 * completed.
+	 * @param seat the wl_seat of the user event
+	 * @param serial the serial of the user event
+	 */
+	void (*move)(struct wl_client *client,
+		     struct wl_resource *resource,
+		     struct wl_resource *seat,
+		     uint32_t serial);
+	/**
+	 * start an interactive resize
+	 *
+	 * Start a user-driven, interactive resize of the surface.
+	 *
+	 * This request must be used in response to some sort of user
+	 * action like a button press, key press, or touch down event. The
+	 * passed serial is used to determine the type of interactive
+	 * resize (touch, pointer, etc).
+	 *
+	 * The server may ignore resize requests depending on the state of
+	 * the surface (e.g. fullscreen or maximized).
+	 *
+	 * If triggered, the client will receive configure events with the
+	 * "resize" state enum value and the expected sizes. See the
+	 * "resize" enum value for more details about what is required. The
+	 * client must also acknowledge configure events using
+	 * "ack_configure". After the resize is completed, the client will
+	 * receive another "configure" event without the resize state.
+	 *
+	 * If triggered, the surface also will lose the focus of the device
+	 * (wl_pointer, wl_touch, etc) used for the resize. It is up to the
+	 * compositor to visually indicate that the resize is taking place,
+	 * such as updating a pointer cursor, during the resize. There is
+	 * no guarantee that the device focus will return when the resize
+	 * is completed.
+	 *
+	 * The edges parameter specifies how the surface should be resized,
+	 * and is one of the values of the resize_edge enum. The compositor
+	 * may use this information to update the surface position for
+	 * example when dragging the top left corner. The compositor may
+	 * also use this information to adapt its behavior, e.g. choose an
+	 * appropriate cursor image.
+	 * @param seat the wl_seat of the user event
+	 * @param serial the serial of the user event
+	 * @param edges which edge or corner is being dragged
+	 */
+	void (*resize)(struct wl_client *client,
+		       struct wl_resource *resource,
+		       struct wl_resource *seat,
+		       uint32_t serial,
+		       uint32_t edges);
+	/**
+	 * set the maximum size
+	 *
+	 * Set a maximum size for the window.
+	 *
+	 * The client can specify a maximum size so that the compositor
+	 * does not try to configure the window beyond this size.
+	 *
+	 * The width and height arguments are in window geometry
+	 * coordinates. See xdg_surface.set_window_geometry.
+	 *
+	 * Values set in this way are double-buffered. They will get
+	 * applied on the next commit.
+	 *
+	 * The compositor can use this information to allow or disallow
+	 * different states like maximize or fullscreen and draw accurate
+	 * animations.
+	 *
+	 * Similarly, a tiling window manager may use this information to
+	 * place and resize client windows in a more effective way.
+	 *
+	 * The client should not rely on the compositor to obey the maximum
+	 * size. The compositor may decide to ignore the values set by the
+	 * client and request a larger size.
+	 *
+	 * If never set, or a value of zero in the request, means that the
+	 * client has no expected maximum size in the given dimension. As a
+	 * result, a client wishing to reset the maximum size to an
+	 * unspecified state can use zero for width and height in the
+	 * request.
+	 *
+	 * Requesting a maximum size to be smaller than the minimum size of
+	 * a surface is illegal and will result in a protocol error.
+	 *
+	 * The width and height must be greater than or equal to zero.
+	 * Using strictly negative values for width and height will result
+	 * in a protocol error.
+	 */
+	void (*set_max_size)(struct wl_client *client,
+			     struct wl_resource *resource,
+			     int32_t width,
+			     int32_t height);
+	/**
+	 * set the minimum size
+	 *
+	 * Set a minimum size for the window.
+	 *
+	 * The client can specify a minimum size so that the compositor
+	 * does not try to configure the window below this size.
+	 *
+	 * The width and height arguments are in window geometry
+	 * coordinates. See xdg_surface.set_window_geometry.
+	 *
+	 * Values set in this way are double-buffered. They will get
+	 * applied on the next commit.
+	 *
+	 * The compositor can use this information to allow or disallow
+	 * different states like maximize or fullscreen and draw accurate
+	 * animations.
+	 *
+	 * Similarly, a tiling window manager may use this information to
+	 * place and resize client windows in a more effective way.
+	 *
+	 * The client should not rely on the compositor to obey the minimum
+	 * size. The compositor may decide to ignore the values set by the
+	 * client and request a smaller size.
+	 *
+	 * If never set, or a value of zero in the request, means that the
+	 * client has no expected minimum size in the given dimension. As a
+	 * result, a client wishing to reset the minimum size to an
+	 * unspecified state can use zero for width and height in the
+	 * request.
+	 *
+	 * Requesting a minimum size to be larger than the maximum size of
+	 * a surface is illegal and will result in a protocol error.
+	 *
+	 * The width and height must be greater than or equal to zero.
+	 * Using strictly negative values for width and height will result
+	 * in a protocol error.
+	 */
+	void (*set_min_size)(struct wl_client *client,
+			     struct wl_resource *resource,
+			     int32_t width,
+			     int32_t height);
+	/**
+	 * maximize the window
+	 *
+	 * Maximize the surface.
+	 *
+	 * After requesting that the surface should be maximized, the
+	 * compositor will respond by emitting a configure event with the
+	 * "maximized" state and the required window geometry. The client
+	 * should then update its content, drawing it in a maximized state,
+	 * i.e. without shadow or other decoration outside of the window
+	 * geometry. The client must also acknowledge the configure when
+	 * committing the new content (see ack_configure).
+	 *
+	 * It is up to the compositor to decide how and where to maximize
+	 * the surface, for example which output and what region of the
+	 * screen should be used.
+	 *
+	 * If the surface was already maximized, the compositor will still
+	 * emit a configure event with the "maximized" state.
+	 */
+	void (*set_maximized)(struct wl_client *client,
+			      struct wl_resource *resource);
+	/**
+	 * unmaximize the window
+	 *
+	 * Unmaximize the surface.
+	 *
+	 * After requesting that the surface should be unmaximized, the
+	 * compositor will respond by emitting a configure event without
+	 * the "maximized" state. If available, the compositor will include
+	 * the window geometry dimensions the window had prior to being
+	 * maximized in the configure request. The client must then update
+	 * its content, drawing it in a regular state, i.e. potentially
+	 * with shadow, etc. The client must also acknowledge the configure
+	 * when committing the new content (see ack_configure).
+	 *
+	 * It is up to the compositor to position the surface after it was
+	 * unmaximized; usually the position the surface had before
+	 * maximizing, if applicable.
+	 *
+	 * If the surface was already not maximized, the compositor will
+	 * still emit a configure event without the "maximized" state.
+	 */
+	void (*unset_maximized)(struct wl_client *client,
+				struct wl_resource *resource);
+	/**
+	 * set the window as fullscreen on a monitor
+	 *
+	 * Make the surface fullscreen.
+	 *
+	 * You can specify an output that you would prefer to be
+	 * fullscreen. If this value is NULL, it's up to the compositor to
+	 * choose which display will be used to map this surface.
+	 *
+	 * If the surface doesn't cover the whole output, the compositor
+	 * will position the surface in the center of the output and
+	 * compensate with black borders filling the rest of the output.
+	 */
+	void (*set_fullscreen)(struct wl_client *client,
+			       struct wl_resource *resource,
+			       struct wl_resource *output);
+	/**
+	 */
+	void (*unset_fullscreen)(struct wl_client *client,
+				 struct wl_resource *resource);
+	/**
+	 * set the window as minimized
+	 *
+	 * Request that the compositor minimize your surface. There is no
+	 * way to know if the surface is currently minimized, nor is there
+	 * any way to unset minimization on this surface.
+	 *
+	 * If you are looking to throttle redrawing when minimized, please
+	 * instead use the wl_surface.frame event for this, as this will
+	 * also work with live previews on windows in Alt-Tab, Expose or
+	 * similar compositor features.
+	 */
+	void (*set_minimized)(struct wl_client *client,
+			      struct wl_resource *resource);
+};
+
+#define ZXDG_TOPLEVEL_V6_CONFIGURE	0
+#define ZXDG_TOPLEVEL_V6_CLOSE	1
+
+/**
+ * @ingroup iface_zxdg_toplevel_v6
+ */
+#define ZXDG_TOPLEVEL_V6_CONFIGURE_SINCE_VERSION	1
+/**
+ * @ingroup iface_zxdg_toplevel_v6
+ */
+#define ZXDG_TOPLEVEL_V6_CLOSE_SINCE_VERSION	1
+
+/**
+ * @ingroup iface_zxdg_toplevel_v6
+ * Sends an configure event to the client owning the resource.
+ * @param resource_ The client's resource
+ */
+static inline void
+zxdg_toplevel_v6_send_configure(struct wl_resource *resource_, int32_t width, int32_t height, struct wl_array *states)
+{
+	wl_resource_post_event(resource_, ZXDG_TOPLEVEL_V6_CONFIGURE, width, height, states);
+}
+
+/**
+ * @ingroup iface_zxdg_toplevel_v6
+ * Sends an close event to the client owning the resource.
+ * @param resource_ The client's resource
+ */
+static inline void
+zxdg_toplevel_v6_send_close(struct wl_resource *resource_)
+{
+	wl_resource_post_event(resource_, ZXDG_TOPLEVEL_V6_CLOSE);
+}
+
+#ifndef ZXDG_POPUP_V6_ERROR_ENUM
+#define ZXDG_POPUP_V6_ERROR_ENUM
+enum zxdg_popup_v6_error {
+	/**
+	 * tried to grab after being mapped
+	 */
+	ZXDG_POPUP_V6_ERROR_INVALID_GRAB = 0,
+};
+#endif /* ZXDG_POPUP_V6_ERROR_ENUM */
+
+/**
+ * @ingroup iface_zxdg_popup_v6
+ * @struct zxdg_popup_v6_interface
+ */
+struct zxdg_popup_v6_interface {
+	/**
+	 * remove xdg_popup interface
+	 *
+	 * This destroys the popup. Explicitly destroying the xdg_popup
+	 * object will also dismiss the popup, and unmap the surface.
+	 *
+	 * If this xdg_popup is not the "topmost" popup, a protocol error
+	 * will be sent.
+	 */
+	void (*destroy)(struct wl_client *client,
+			struct wl_resource *resource);
+	/**
+	 * make the popup take an explicit grab
+	 *
+	 * This request makes the created popup take an explicit grab. An
+	 * explicit grab will be dismissed when the user dismisses the
+	 * popup, or when the client destroys the xdg_popup. This can be
+	 * done by the user clicking outside the surface, using the
+	 * keyboard, or even locking the screen through closing the lid or
+	 * a timeout.
+	 *
+	 * If the compositor denies the grab, the popup will be immediately
+	 * dismissed.
+	 *
+	 * This request must be used in response to some sort of user
+	 * action like a button press, key press, or touch down event. The
+	 * serial number of the event should be passed as 'serial'.
+	 *
+	 * The parent of a grabbing popup must either be an xdg_toplevel
+	 * surface or another xdg_popup with an explicit grab. If the
+	 * parent is another xdg_popup it means that the popups are nested,
+	 * with this popup now being the topmost popup.
+	 *
+	 * Nested popups must be destroyed in the reverse order they were
+	 * created in, e.g. the only popup you are allowed to destroy at
+	 * all times is the topmost one.
+	 *
+	 * When compositors choose to dismiss a popup, they may dismiss
+	 * every nested grabbing popup as well. When a compositor dismisses
+	 * popups, it will follow the same dismissing order as required
+	 * from the client.
+	 *
+	 * The parent of a grabbing popup must either be another xdg_popup
+	 * with an active explicit grab, or an xdg_popup or xdg_toplevel,
+	 * if there are no explicit grabs already taken.
+	 *
+	 * If the topmost grabbing popup is destroyed, the grab will be
+	 * returned to the parent of the popup, if that parent previously
+	 * had an explicit grab.
+	 *
+	 * If the parent is a grabbing popup which has already been
+	 * dismissed, this popup will be immediately dismissed. If the
+	 * parent is a popup that did not take an explicit grab, an error
+	 * will be raised.
+	 *
+	 * During a popup grab, the client owning the grab will receive
+	 * pointer and touch events for all their surfaces as normal
+	 * (similar to an "owner-events" grab in X11 parlance), while the
+	 * top most grabbing popup will always have keyboard focus.
+	 * @param seat the wl_seat of the user event
+	 * @param serial the serial of the user event
+	 */
+	void (*grab)(struct wl_client *client,
+		     struct wl_resource *resource,
+		     struct wl_resource *seat,
+		     uint32_t serial);
+};
+
+#define ZXDG_POPUP_V6_CONFIGURE	0
+#define ZXDG_POPUP_V6_POPUP_DONE	1
+
+/**
+ * @ingroup iface_zxdg_popup_v6
+ */
+#define ZXDG_POPUP_V6_CONFIGURE_SINCE_VERSION	1
+/**
+ * @ingroup iface_zxdg_popup_v6
+ */
+#define ZXDG_POPUP_V6_POPUP_DONE_SINCE_VERSION	1
+
+/**
+ * @ingroup iface_zxdg_popup_v6
+ * Sends an configure event to the client owning the resource.
+ * @param resource_ The client's resource
+ * @param x x position relative to parent surface window geometry
+ * @param y y position relative to parent surface window geometry
+ * @param width window geometry width
+ * @param height window geometry height
+ */
+static inline void
+zxdg_popup_v6_send_configure(struct wl_resource *resource_, int32_t x, int32_t y, int32_t width, int32_t height)
+{
+	wl_resource_post_event(resource_, ZXDG_POPUP_V6_CONFIGURE, x, y, width, height);
+}
+
+/**
+ * @ingroup iface_zxdg_popup_v6
+ * Sends an popup_done event to the client owning the resource.
+ * @param resource_ The client's resource
+ */
+static inline void
+zxdg_popup_v6_send_popup_done(struct wl_resource *resource_)
+{
+	wl_resource_post_event(resource_, ZXDG_POPUP_V6_POPUP_DONE);
+}
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif